Barb?

[Fin Lover]

My last few trips haven't been particularly exciting, and I am seeing more of my spots lost to construction or getting closed off.  I did find what originally looked like part of a shark tooth until I got home and saw the barbs.  But, it doesn't look like the typical ray barb that I find or see on the forum/online.  It has enamel and the individual barbs don't go all the way to the tip. Also, the barbs point the opposite direction from a typical ray barb.  Any ideas what it is from?

 

Barb in question:

 

Typical ray barb found the same day:

 

Side by side comparison:

 

Found in Ladson, SC in a creek with multiple epochs represented.  Thanks!

Edited September 9, 2022 by Fin Lover
Added location

[Meganeura]

Not a barb - that's a worn lower Hemi!

 

The only one I have I could find to show it is quite small - but you can see the “barbs” are actually serrations on the right side.

 

Edit: Found another example:

Edited September 9, 2022 by Meganeura

[Fin Lover]

Thanks. It's funny that I mentioned that to my husband last night, but it didn't look like the other lower hemis I had, so I ruled it out. I think I'm off my game and getting discouraged.  Thanks for the help!

[Fin Lover]

I looked at some of my other lower hemis, just to see how badly I'm losing it right now, and they don't have the long point without serrations, but I can clearly see from @Meganeura's pictures that it is a lower hemi.  I still think I need to take a few weeks off from hunting.  

[Meganeura]

Just now, Fin Lover said:

I looked at some of my other lower hemis, just to see how badly I'm losing it right now, and they don't have the long point without serrations, but I can clearly see from @Meganeura's pictures that it is a lower hemi.  I still think I need to take a few weeks off from hunting.  

For what it's worth - in my large number of hemis - I found exactly 3 that had those barbs on em - 2 small ones which are the ones I posted, and a much bigger one that has slight serrations on it. Not sure if it's a patho hemi, or just a rare tooth position, but I wouldn't beat yourself up over it!

[Fin Lover]

@Meganeura, lower anterior teeth only have a few serrations, according to https://www.fossilguy.com/gallery/vert/fish-shark/hemipristis/hemipristis.htm

 

Edited September 9, 2022 by Fin Lover
Removed extra spaces

[Meganeura]

2 minutes ago, Fin Lover said:

@Meganeura, lower anterior teeth only have a few serrations, according to https://www.fossilguy.com/gallery/vert/fish-shark/hemipristis/hemipristis.htm

 

 

 

 

 

 

 

So they do! Neat. I suppose they're just rarer than others, or the small serrations can get worn away easily.

[debivort]

concur with all the above. Got a couple of these too:

[hemipristis]

Barb’s not here. Can we help you? 

[Fin Lover]

@hemipristis, thanks, I needed a good laugh.